n: 40 m: 457 packed: 13 density: 0 nodes: 0 solveTime: 19840 buildTime: 120 solved: true
{0,13,24}
{1,18,37}
{2,11,17}
{3,15,16}
{4,12,34}
{5,8,22}
{6,7,26}
{9,33,35}
{10,14,20}
{21,23,31}
{25,30,39}
{27,36,38}
{28,29,32}